Save few more mbytes in the apk
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Deve
parent
68cfdfbf17
commit
076d1f2b62
@ -5,13 +5,15 @@
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# A script that generates data files for Android apk
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# Below are simple configuration variables
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# Below you can find some simple configuration variables.
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# It's allowed to set "all" for KARTS and TRACKS if it's intended to create
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# package with full data.
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# The karts and tracks directories shouldn't exist in ASSETS_DIRS variable
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# because they are handled separately
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# because they are handled separately.
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# The TEXTURE_SIZE and SOUND_QUALITY take effect only if DECREASE_QUALITY has
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# value greater than 0
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# value greater than 0.
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# The CONVERT_TO_JPG variable enables converting all images that are safe to
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# convert and keeps other images untouched.
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# The script needs imagemagick and ogg utils installed to use DECREASE_QUALITY
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# feature
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@ -37,6 +39,7 @@ export SOUND_SAMPLE=32000
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export RUN_OPTIMIZE_SCRIPT=0
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export DECREASE_QUALITY=1
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export CONVERT_TO_JPG=0
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export BLACKLIST_FILES="data/music/cocoa_river_fast.ogg2"
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@ -246,6 +249,158 @@ convert_sound()
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rm -f tmp.wav tmp.ogg
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}
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convert_b3d()
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{
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if [ -z "$1" ]; then
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echo "No file to convert"
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return
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fi
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FILE="$1"
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echo "Convert file: $FILE"
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if [ ! -f "$FILE" ]; then
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echo " File doesn't exist."
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return
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fi
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HEX_FILE=`hexdump -ve '1/1 "%.2x"' "$FILE"`
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TEXS_CHUNK="54455853"
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TEXS_CHUNK_POS=24
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FOUND_CHUNK=`echo $HEX_FILE | head -c $(($TEXS_CHUNK_POS + 8)) \
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| tail -c +$(($TEXS_CHUNK_POS + 1))`
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if [ -z "$FOUND_CHUNK" ] || [ "$FOUND_CHUNK" != "$TEXS_CHUNK" ]; then
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echo " Unsupported format."
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return
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fi
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TEXS_SIZE=`echo $HEX_FILE | head -c $(($TEXS_CHUNK_POS + 16)) | tail -c 8`
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TEXS_SIZE_CONVERTED=`echo $TEXS_SIZE | cut -c7-8`
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TEXS_SIZE_CONVERTED=$TEXS_SIZE_CONVERTED`echo $TEXS_SIZE | cut -c5-6`
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TEXS_SIZE_CONVERTED=$TEXS_SIZE_CONVERTED`echo $TEXS_SIZE | cut -c3-4`
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TEXS_SIZE_CONVERTED=$TEXS_SIZE_CONVERTED`echo $TEXS_SIZE | cut -c1-2`
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TEXS_SIZE_CONVERTED=`echo $((0x$TEXS_SIZE_CONVERTED))`
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if [ $TEXS_SIZE_CONVERTED -le 0 ]; then
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echo " Invalid TEXS size value."
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return
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fi
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TEXS_BEGIN=$(($TEXS_CHUNK_POS + 16))
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TEXS_END=$(($TEXS_BEGIN + $TEXS_SIZE_CONVERTED * 2))
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HEX_TEXS=`echo $HEX_FILE | head -c $TEXS_END | tail -c +$(($TEXS_BEGIN+1))`
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CURR_POS=0
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cp "$FILE" tmp.b3d
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while [ $CURR_POS -lt $TEXS_END ]; do
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NULL_POS=`echo $HEX_TEXS | tail -c +$(($CURR_POS+1)) | grep -b -o "00" \
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| head -n 1 | cut -f1 -d":"`
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if [ -z $NULL_POS ]; then
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echo " Done."
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break
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fi
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if [ $NULL_POS -lt 4 ]; then
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echo " Something went wrong..."
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break
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fi
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TEXNAME_BEGIN=$((($TEXS_BEGIN + $CURR_POS) / 2))
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TEXNAME_END=$((($TEXS_BEGIN + $CURR_POS + $NULL_POS) / 2))
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CURR_POS=$(($CURR_POS + $NULL_POS + 58))
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TEXTURE_NAME=`dd if="$FILE" bs=1 skip=$TEXNAME_BEGIN \
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count=$(($TEXNAME_END - $TEXNAME_BEGIN)) 2> /dev/null`
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DIRNAME=`dirname "$FILE"`
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TEXTURE_PATH="$DIRNAME/$TEXTURE_NAME"
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echo " Texture: $TEXTURE_NAME"
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ALREADY_CONVERTED=0
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if [ -s "./converted_textures" ]; then
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while read -r CONVERTED_TEXTURE; do
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if [ "$TEXTURE_PATH" = "$CONVERTED_TEXTURE" ]; then
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ALREADY_CONVERTED=1
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break
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fi
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done < "./converted_textures"
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fi
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if [ $ALREADY_CONVERTED -eq 0 ]; then
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if [ ! -f "$TEXTURE_PATH" ]; then
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echo " Couldn't find texture file. Ignore..."
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continue
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fi
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FILE_EXTENSION=`echo "$TEXTURE_PATH" | tail -c 5`
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if [ `echo "$FILE_EXTENSION" | head -c 1` != "." ]; then
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echo " Unsupported file extension. Ignore..."
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continue
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fi
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FILE_FORMAT=`identify -format %m "$TEXTURE_PATH"`
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if [ "$FILE_FORMAT" = "JPEG" ]; then
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echo " File is already JPEG. Ignore..."
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continue
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fi
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#IS_OPAQUE=`identify -format '%[opaque]' "$TEXTURE_PATH"`
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HAS_ALPHA=`identify -format '%A' "$TEXTURE_PATH"`
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if [ "$HAS_ALPHA" = "True" ] || [ "$HAS_ALPHA" = "true" ]; then
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echo " File has alpha channel. Ignore..."
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continue
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fi
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NEW_TEXTURE_NAME="`echo $TEXTURE_NAME | head -c -5`.jpg"
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NEW_TEXTURE_PATH="`echo $TEXTURE_PATH | head -c -5`.jpg"
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if [ -f "$NEW_TEXTURE_PATH" ]; then
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echo " There is already a file with .jpg extension. Ignore..."
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continue
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fi
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convert -quality $JPEG_QUALITY "$TEXTURE_PATH" "$NEW_TEXTURE_PATH"
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rm -f "$TEXTURE_PATH"
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if [ -s "$DIRNAME/materials.xml" ]; then
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sed -i "s/name=\"$TEXTURE_NAME\"/name=\"$NEW_TEXTURE_NAME\"/g" \
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"$DIRNAME/materials.xml"
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fi
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if [ -s "$DIRNAME/scene.xml" ]; then
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sed -i "s/name=\"$TEXTURE_NAME\"/name=\"$NEW_TEXTURE_NAME\"/g" \
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"$DIRNAME/scene.xml"
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fi
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echo "$TEXTURE_PATH" >> "./converted_textures"
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fi
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echo -n ".jpg" | dd of=./tmp.b3d bs=1 seek=$(($TEXNAME_END - 4)) \
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conv=notrunc 2> /dev/null
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done
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SIZE_OLD=`du -b "$FILE" | cut -f1`
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SIZE_NEW=`du -b "tmp.b3d" | cut -f1`
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if [ $SIZE_NEW -ne $SIZE_OLD ]; then
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echo " Something went wrong..."
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exit
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fi
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mv tmp.b3d "$FILE"
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}
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if [ $DECREASE_QUALITY -gt 0 ]; then
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find assets/data -iname "*.png" | while read f; do convert_image "$f" "png"; done
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find assets/data -iname "*.jpg" | while read f; do convert_image "$f" "jpg"; done
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@ -253,6 +408,17 @@ if [ $DECREASE_QUALITY -gt 0 ]; then
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fi
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if [ $CONVERT_TO_JPG -gt 0 ]; then
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find assets/data -iname "*.b3d" | while read f; do convert_b3d "$f"; done
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if [ -s "./converted_textures" ]; then
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echo "Converted textures:"
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cat "./converted_textures"
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rm -f "./converted_textures"
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fi
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fi
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# Copy data directory
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echo "Copy data directory"
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cp -a ../data/* assets/data/
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